This really puzzles since he was picked up so quickly at a good salary.

Armando Salguero wrote:

If we have a figurative repeat of a Matt Roth incident, where Porter gets picked up almost instantly and signs for money that is as big if not bigger than what he's currently due, I'm going think something went awry in Miami's attempt to get something in return for him.

...

I find it hard to understand why the Dolphins couldn't have gotten something for Roth before the deadline if they knew he wasn't in their long-term plans -- which he was not. I'm not saying they should have gotten a first-day pick for Roth. That wouldn't be fair. But a seventh-rounder or perhaps a seventh-rounder in two years is better than absolutely nothing.

And yet, Miami got nothing.

Those seventh-round picks, contrary to some philosophical beliefs, are valuable. Mark Clayton was an eighth-round selection once upon a time. Jeff Cross was once a ninth-round selection.